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Neurocritical Care Glossary

100 terms total — 24 showing — Last updated 15 Sep 2026

EEG EEG

Intermediate Technical IVT

Electroencephalogram; a test recording electrical activity in the brain, essential for detecting seizures in critically ill patients.

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FOUR score

Professional Technical IVT

Full Outline of UnResponsiveness score; a coma scale that evaluates eye responses, motor responses, brainstem reflexes,...

Technical Term Full entry →

GCS

Intermediate Technical IVT

Glasgow Coma Scale; a standardized assessment tool for measuring level of consciousness in neurological patients.

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Glasgow Outcome Scale

Intermediate Technical IVT

A standardized scale for assessing functional outcomes in patients following traumatic brain injury or other acute neuro...

GOS
Technical Term Full entry →

herniation

Professional Technical IVT

Displacement of brain tissue from one intracranial compartment to another due to mass effect, representing a neurosurgic...

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Hunt and Hess scale

Professional Technical IVT

Clinical grading system for subarachnoid hemorrhage severity based on neurological presentation.

Technical Term Full entry →

hypertonic saline

Intermediate Technical IVT

Concentrated sodium chloride solutions (typically 3% or 23.4%) used to reduce intracranial pressure and treat cerebral e...

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ICP

Professional Technical IVT

Intracranial pressure; the pressure within the skull that must be monitored and managed in neurocritical patients.

Technical Term Full entry →

intraparenchymal pressure monitor

Professional Technical IVT

A device placed directly into brain tissue to continuously measure intracranial pressure, providing accurate real-time I...

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jugular venous oxygen saturation

Advanced Technical IVT

Oxygen saturation measured in the jugular bulb, reflecting global cerebral oxygen extraction and metabolism. Abbreviated...

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LCS

Professional Technical IVT

Lumbar cerebrospinal fluid drainage; a procedure to remove CSF from the lumbar spine to reduce intracranial pressure.

Abbreviation Full entry →

luxury perfusion

Advanced Technical IVT

Pathological condition where cerebral blood flow exceeds metabolic demands, often following brain injury.

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malignant MCA syndrome

Professional Technical IVT

Severe middle cerebral artery stroke with significant brain swelling leading to elevated intracranial pressure and herni...

Technical Term Full entry →

mannitol

Professional Technical IVT

Osmotic diuretic medication used to reduce intracranial pressure by drawing fluid from brain tissue into the vascular sp...

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microdialysis

Professional Technical IVT

Invasive monitoring technique measuring brain tissue biochemistry through implanted catheters.

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modified Rankin Scale

Intermediate Technical IVT

A standardized scale measuring the degree of disability or dependence in daily activities for patients who have suffered...

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multimodal monitoring

Advanced Technical IVT

Comprehensive neurological surveillance using multiple complementary techniques to assess brain function in critically i...

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Near-Infrared Spectroscopy

Intermediate Technical IVT

Non-invasive optical technique for monitoring regional cerebral oxygen saturation using near-infrared light.

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neurogenic pulmonary edema

Professional Technical IVT

Acute lung injury following severe brain injury due to massive sympathetic discharge.

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neurointensive care unit

Intermediate Formal IVT

A specialized intensive care unit dedicated to managing patients with acute neurological and neurosurgical conditions.

Technical Term Full entry →

neuroprotection

Intermediate Technical IVT

Therapeutic strategies aimed at preventing or limiting secondary brain injury following primary neurological insults.

Technical Term Full entry →

neuroworsening

Intermediate Technical IVT

Clinical deterioration in neurological status from baseline, often requiring urgent evaluation and intervention in neuro...

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NIHSS

Professional Technical IVT

National Institutes of Health Stroke Scale; a standardized assessment tool for quantifying stroke severity.

Technical Term Full entry →

NPi

Advanced Technical IVT

A standardized numerical score (0-5) derived from automated pupillometry to quantify pupillary reactivity.

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ONSD

Professional Technical IVT

Optic nerve sheath diameter measurement used as a non-invasive indicator of elevated intracranial pressure.

Abbreviation Full entry →
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